The U.S. Department of War announced on September 24, 2025, the implementation of the Cybersecurity Risk Management Construct (CSRMC), a comprehensive framework replacing the outdated Risk Management Framework that had governed federal cybersecurity since 2004 under the Federal Information Security Management Act. The CSRMC represents a fundamental shift from static, checklist-driven compliance to dynamic, automated cybersecurity operations designed to match the pace of modern warfare. Unlike the legacy RMF system used across federal agencies and civilian government organizations for over two decades, which relied on periodic assessments and manual processes, the CSRMC implements continuous monitoring, real-time authorization to operate capabilities, and automated workflows through five distinct phases: design, build, test, onboard, and operations. The framework is built on ten strategic tenets including automation, DevSecOps integration, cyber survivability, and threat-informed testing, with acting CIO Katie Arrington describing it as “a cultural fundamental shift” that empowers the department to defend against current adversaries while preparing for future challenges. This initiative extends beyond internal defense systems to mandate alignment from defense contractors, suppliers, and the broader defense industrial base, potentially influencing civilian cybersecurity practices similar to how the original NIST RMF framework shaped government and private sector risk management approaches over the past two decades.